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EN 10088-1 X2CrNiSi18-10 vs ASTM A240/A240M S31603

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

EN 10088-1 X2CrNiSi18-10 (EN 10088-1:2023) and ASTM A240/A240M S31603 (ASTM A240/A240M:2025) are both steel grades. Both fall under the Stainless Steel category. EN 10088-1 X2CrNiSi18-10 is defined under European Standard (EN), originating from Europe, while ASTM A240/A240M S31603 is defined under ASTM International, originating from United States.

As per chemical composition, EN 10088-1 X2CrNiSi18-10 vs ASTM A240/A240M S31603 is a 70.9% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 69.9%.

Frequently Compared With EN 10088-1 X2CrNiSi18-10:
ASTM A959 .- GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4301 EN 10088-1 1.4401 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12Ni2Mo IS 1570 (Part 7) 12Cr13H IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH
Match Breakdown
CHEMISTRY MATCH
70.9%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property EN 10088-1 X2CrNiSi18-10 ASTM A240/A240M S31603
Standard EN 10088-1:2023 ASTM A240/A240M:2025
Category Stainless Steel Stainless Steel
C (%) <=0.03 <=0.030
Si (%) 0.80-2.0 <=0.75
Mn (%) <=2.00 <=2.00
P (%) <=0.045 <=0.045
S (%) <=0.015 <=0.030
Cr (%) 17.5-19.5 16.0-18.0
Mo (%) 0.40-0.80 2.00-3.00
Ni (%) 9.0-11.0 10.0-14.0
N (%) <=0.10 <=0.10
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property EN 10088-1 X2CrNiSi18-10 ASTM A240/A240M S31603
Tensile Strength Not specified >=485 MPa
Yield Strength Not specified >=170 MPa
Elongation Not specified >=40%
Hardness Not specified <=217 HB
Condition Not specified Plate, sheet and strip; yield by 0.2 percent offset
Typical Applications
EN 10088-1 X2CrNiSi18-10
Not documented
ASTM A240/A240M S31603
Pressure vessels and general applications (plate, sheet and strip)
Can EN 10088-1 X2CrNiSi18-10 Be Substituted With ASTM A240/A240M S31603?
EN 10088-1 X2CrNiSi18-10 and ASTM A240/A240M S31603 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
On M-EX Right Now
EN 10088-1 X2CrNiSi18-10
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ASTM A240/A240M S31603
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Frequently Asked Questions
What is the difference between EN 10088-1 X2CrNiSi18-10 and ASTM A240/A240M S31603?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can EN 10088-1 X2CrNiSi18-10 be substituted with ASTM A240/A240M S31603?
EN 10088-1 X2CrNiSi18-10 and ASTM A240/A240M S31603 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.